[rfa/testsuite] avoid 'gamma' function name

[Michael Elizabeth Chastain <mec@shout.net>]

This patchlet works around a recent change in gcc HEAD where 'gamma' is
now a reserved identifier, even when 'math.h' is not included.

I've reported this as a regression bug against gcc:

  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12213
  [3.4 regression] warning: conflicting types for builtin-function 'gamma'

I'm pretty sure this is actually a bug in gcc.  A draft of the C9x spec
says that all external library names are reserved, and does not qualify
that by saying that the header file for that name has to be included.
However, the particular name 'gamma' is an obsolete name and not
mentioned in the standard.

However -- the purpose of gdb1250.exp is to test backtracing and
prologue analysis.  It's not to test C library reserved identifiers.
So this patch just avoids the issue.

Testing: tested on native i686-pc-linux-gnu, gcc v2 and v3, dwarf-2 and
stabs+.  Specifically tested with gcc HEAD that thinks 'gamma' is
a reserved identifier.

Okay to commit?

Michael C

===

2003-09-08  Michael Chastain  <mec@shout.net>

	* gdb.base/gdb1250.c: Rename 'gamma' to 'my_gamma'.

Index: gdb.base/gdb1250.c
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/gdb1250.c,v
retrieving revision 1.1
diff -u -r1.1 gdb1250.c
--- gdb.base/gdb1250.c	15 Jul 2003 16:28:21 -0000	1.1
+++ gdb.base/gdb1250.c	8 Sep 2003 21:05:19 -0000
@@ -25,7 +25,11 @@
 
 int global = 0;
 
-void gamma (int *parray)
+/* Foo, gcc thinks 'gamma' is a reserved identifier.
+   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12213
+   I am not interested in testing that point so just avoid the word.
+   -- chastain 2003-09-08. */
+void my_gamma (int *parray)
 {
   return;
 }
@@ -37,7 +41,7 @@
   array [1] = global++;
   array [2] = global++;
   array [3] = global++;
-  gamma (array);
+  my_gamma (array);
   abort ();
 }